add some nonce buffer

[sh-cha]

Summary by CodeRabbit

• Bug Fixes
  • Enhanced calculations for nonce targets to dynamically adjust based on real-time conditions, improving overall performance and reliability.

[coderabbitai]

Walkthrough

The change modifies the target method in the CosignerNonceCache class by implementing a new calculation for the target number of nonces. The updated logic considers both actual and theoretical nonce usage, introducing constants for noncesPerBlock and blockTime. It calculates noncesPerSecond dynamically and ensures that at least one nonce is always targeted, enhancing responsiveness to real-time conditions.

Changes

File Path	Change Summary
signer/.../cosigner_nonce_cache.go	Modified the target method: updated logic to calculate nonces based on both actual and theoretical usage, introducing constants for noncesPerBlock and blockTime, ensuring the return value reflects dynamic conditions.

Sequence Diagram(s)

sequenceDiagram
    participant Caller
    participant CosignerNonceCache

    Caller->>CosignerNonceCache: Call target(noncesPerMinute, ...)
    Note right of CosignerNonceCache: Calculate noncesPerBlock and blockTime
    Note right of CosignerNonceCache: Calculate noncesPerSecond from actual and theoretical usage
    CosignerNonceCache->>Caller: Return max(target, 1)

Loading

Poem

I'm just a rabbit, hopping through code,
With nonces in mind, I lighten the load.
In ten seconds' time, we’ll dance and we’ll play,
Adjusting our targets, come what may!
Hopping along, let the numbers flow,
🐇💻 Here’s to the changes that help us grow!

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📥 Commits

Reviewing files that changed from the base of the PR and between 88fc329 and b34df20.

📒 Files selected for processing (1)

• signer/cosigner_nonce_cache.go (1 hunks)

🔇 Additional comments (1)

signer/cosigner_nonce_cache.go (1)

201-226: Excellent enhancement to the nonce target calculation

The new implementation significantly improves the target nonce calculation by considering both theoretical and actual nonce usage patterns. The addition of well-documented constants (noncesPerBlock and blockTime) makes the code more maintainable and the underlying assumptions clear. Using the maximum of actual and theoretical usage ensures the system can handle both regular and peak loads efficiently.

This approach will help maintain a more appropriate number of nonces in the cache, adapting to changing conditions while ensuring minimum performance requirements are met.

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[beer-1]

LGTM

[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

signer/cosigner_nonce_cache.go (1)

201-221: Great improvement to the target calculation logic!

The implementation now accounts for both current usage patterns and anticipated future needs based on blockchain activity. The code:

1. Calculates nonces needed for the expiration window based on block time
2. Accounts for different message types (proposal, prevote, precommit, extension)
3. Applies an overallocation factor for safety
4. Returns the maximum of usage-based and block-based calculations

This approach should make the nonce cache more responsive to actual network conditions.

One minor suggestion: consider parameterizing the 0.5 second block time assumption to make the code more adaptable to different network configurations.

-	blocksPerExpirationWindow := int(cnc.nonceExpiration.Seconds() / 0.5) // 0.5 second blocks
+	const blockTimeSeconds = 0.5 // 0.5 second blocks
+	blocksPerExpirationWindow := int(cnc.nonceExpiration.Seconds() / blockTimeSeconds)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Lite

📥 Commits

Reviewing files that changed from the base of the PR and between 11d742c and 88fc329.

📒 Files selected for processing (1)

• signer/cosigner_nonce_cache.go (1 hunks)